He is arrogant

"What have you done to me!"

A logical reaction. You expected this.

"I have combined you with the essence of an animal." You casually explain to him.

"What ... why would you do that?"

You paced around the table, explaining your goals to him.

"The world has very few creatures in it, my dear. Every day, many species go extinct, but none are added to it. This is my way or repairing that error. With you, I have given nature a new species. One that is based on the human, the most successful species to date, and I have improved on it."

Your victim was intrigued.

"You ... improved me?"

"Yes! With this new body you have enhanced ability's, greater power, improved strength. You are better then you have ever been before."

You had thought he would rejoice, and he certainly did.

"So, I am stronger?" He said while a smile formed on his face.

"Yes, you now posses the strength of a dragon."

"Good."

He pulled on the straps keeping him to the table, and pulled them loose. This ... is something you had not expected.

You attempted to subdue him with a gust of wind. It caused him to be flung to the other side of the room.

Next you tried to subdue him with a lightning bolt. This time however he was to fast for you.

He dashed across the room, evading your blasts. At some point he ran up a table and jumped up with wings spread, ready to take flight. You aimed your blasts to where you predicted he would be, but all of those missed for he had deceived you. Instead of actually taking flight, he fell down to the ground and headed straight for you.

Before you could do anything else, he reached you. His claws wrapped around your throat and he held you with your feet above the ground.

"I should thank you." He said. "Without your help I'd never have been able to escape."

He squeezed your throat to emphasize his superiority over you.

"But then again, you also only did half work."

He now threw you on the same table he had been transformed on.

"When I jumped from that table, I found I was not able to fly. You didn't make my wings strong enough. Make them better!"

He yelled it into your face. You had never thought your subject to defeat you so easily, let alone demand even more of a transformation from you.

"It doesn't work like that."

You denied his order, that was not very smart. He responded by raking his claws across your chest. Your clothes were ripped open, leaving your breasts naked to him.

"'Then you will FIND a way to MAKE it work!"

You gazed into his angry eyes and explained yourself.

"What I mean is ... for a transformation like this, I need the body parts of a dragon. The problem is that dragons are extremely rare. What I used on you was everything I had."

Upon hearing this, he screamed in rage.

"Then that would mean you are no longer of any use of me."

He raised his claws to grant you your ****-blow.

"Wait!" You called.

He kept his arm up high, claws glittering in the moonlight.

"Go on, beg for your life."

"I am the only one who knows how the transformation spell works. All I require are the components. Once I have those I can complete you."

The man realized you were speaking the truth. His strength visibly left him and he released you.

"Very well. You shall live for now. But if you can't find these components fast enough, I shall take your life and find another wizard to do it for me."

Now that your life wasn't in immediate danger, you had the chance to think about what just happened. You have given a young human man almost all the powers and ability's of a dragon. You had made him strong enough to even rival you.

You were happy, your experiment was a huge success. However now, you had a dragon-man to deal with.